5. Noelle always leaves a tip of between 10% and 15% for the stylist when she gets her hair done. This can be represented by the system of inequalities shown below, where y is the amount of tip
and x is the cost of the hair service. Which of the following is a true statement?
y > 0.12
y < 0.152

A. When the cost of the hair service, x, is $50 the amount of tip, y, must be between $5 and
$7.50.
B. When the tip, y, is $15, the cost of the hair service, x, must be between $50 and $75.
C. When the tip, y, is $10, the cost of the hair service, x, must be between $100 and $150.
D. When the cost of the hair service, x, is $75 the amount of tip, y, must be between $11.25
and $15.